Single-trigger mechanism.



H. MORI'IZ I. I. KOELSCH & F. KOEHN.

SINGLE TRIGGER MECHANISM.

APPLICATION FILED NOV. I9. I912.

Patented July 6, 1915.

/ IIII\II\H III?"- IIII ya Imnmnnv 1 J 4i SINGLE-TRIGGER MECHANISM.

To all whom it may concern:

Be it known that we, HERMAN Monirz, Josnrn J. KonLscH, and FRANK KoEHN, citizens of the United States, residing at 5 Durham, in the county of Marion, State of Kansas, have invented certain new and useful Improvements in Single-Trigger Mechanisms and we do hereby declare the following to be a full, clear. and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of the invention resides in providing means whereby a firearm which in cludes independent firing mechanism may be operated through the medium of a. single trigger to fire saidmechanism singly.

A further object of the invention resides in the provision of a single trigger mechanism for firearms which may be readily associated with any standard double barrel firearm employing an independent firing mechanism for each barrel.

l/Vith the above and other objects in view the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully described and particularly pointed out in the appended claim.

In describing the invention in detail reference will be had to the accompanying drawin s wherein like characters of reference denote corresponding parts in the several views, and in which Figure 1 is a side View of the lock mechanism with the trigger plate partly in section; Fig. 2 a horizontal section of a fragment of what is shown in Fig. 1 with the parts of the single trigger mechanism in the position they would occupy when both firing mechanisms of the gun are in cocked position. Fig. 3 a view similar to Fig. 2 with the parts of the single trigger mechanism in the position they would occupy after the left 5 hand firing mechanism of the gun has been fired. Fig. 4 a plan view of the trigger plate, trigger and the parts carried by said trigger plate and trigger. Fig. 5 a detail perspective view of the tripping lever of the 1 single trigger mechanism, and Fig. 6 a detail perspective view of the trigger detached.

Referring to the drawings, A indicates the breech of the gun and B the trigger plate which is attached to the breech in the usual and well known manner. Mounted upon the breech A are left and right hand firing Specification of Letters Patent. Application filed November 19, 1912.

Patente Serial No. 732,351.

, JOSEPH J. KOELSCH, AND FRANK KOEHN, OF DURHAM, KANSAS.

d July 6, 1915.

mechanisms C and D respectively. These firing mechanisms C and are of the usual being L-shaped, as is cus tomary and disposed in opposition to each other, the long to be engaged by tion, it being understood hammer is suitably connected to be moved under the influence the hammer to bring a debler 12 so as of the cocking of sired notch thereof into p gaged by the Pivotally mounted in the a respective sear 11 to hold the ad acent firing hammer in cocked posithat said firing with the tumosition to be enadjacent sear l1.

usual opening in the trigger plate B is a trigger 13 which is and a tail piece 16, beneath the short arms of movable in a horizontal by means of a leaf the sears" 11 and plane transversely of the gun so as to position said tail piece under the short arm of the sear of either the right hand or left hand firing mechanism. The free end of the forward section 15 of the tripping lever a laterally bent portion the left hand firing mechanism C and of the tumbler 12 tioned to pass in front when the left hand hamme tracted position. When th mer C is retracted the laterally bent is provided with directed toward posir 10 is in non-ree left hand hamportion .17 will be engaged by the tumbler 12 associated with the firing mechanism C and moved inwardly gun so as to swing the tail the short arm of the sear and transversely of the piece 16 beneath 11 which looks the hammer of the firing mechanism C in cocked position. When tion the actuation engage the sear 11 of the mechanism from the notched plate 12 fire the left hand hammer ous. The tripping lever E with the right hand firing means of a leaf spring 1 the tail piece is in this posiof the trigger 13 will disleft hand firing and as will be obviis normally held tail piece 16 besear 11 associated mechanism D by 8 mounted upon the inner face of the trigger plate B and bearing against the side of the tail piece 16 adjacent the firing mechanism C. Through theinstrumentality of this spring 18 it will be apparent that as soon as the left hand hammer 10 is fired the laterally bent free end 17 of the extension 15 of the tripping lever will be forced across the front of the tumbler 12 of the firing mechanism C and the tail piece 16 simultaneously moved beneath the short arm of the sear 11 associated with the firing mechanism D so that the next actuation of the trigger 13 will cause the tail piece to engage the sear 11 of the firing mechanism D and release the right hand firing hammer 10. 7

It will of course be apparent that if only the right hand firing hammer is cocked the tail piece 16 will remain beneath the short arm of the sear 11 associated with the firing mechanism D when actuation of the trigger 13 will release the right hand hammer. However, as soon as the left hand hammer 10 is cocked the tail piece 16 will be moved against the influence of the springlS to a position beneath the short arm of the sear 11 of the firing mechanism C in the manner heretofore described, when the actuation of the trigger 13 will fire the left hand hammer and the next actuation of the trigger will fire the right hand hammer if same be cooked.

While the single trigger mechanism has been shown constructed so as to operate the left hand hammer first it will be apparent Copies of this patent may be obtained for five cents each, by addressing Washington, D. 6.

that said mechanism may be readily reversed so as to first if desired.

What we claim is In a firearm, the combination of a guard plate, a pair of firing mechanisms, arsear associated with each mechanism for holding same in cocked position, a trigger pivotally mounted for movement in an opening in the guard plate, a tripping lever pivoted on said trigger and including a forward extension and a tail piece, a leaf spring having one end secured to the trigger plate with its widest face in engagement with said plate, the other end of said spring engaging said tail piece and constantly tending to move same in operative relation to the sear of one of said firing mechanisms, said leaf spring being twisted to dispose the widest face thereof against the tail piece, and a laterally bent end on the forward extension adapted to be engaged by an element of the other firing mechanism whereby the cocking of the last named firing mechanism will move the tail piece of the lever into operative relation with respect to the sear of said last named firing mechanism.

In testimony whereof, we aifix our signatures, in presence of two witnesses.

HERMAN MORITZ. JOSEPH J. KOELSCH. FRANK KOEHN.

Witnesses:

EMANUEL BECKER,

Row. M. Porn.

the Commissioner of Patents,

fire the right hand hammer 

